| Points: 220 | Last online: 11.19.2018
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    • mklyk has written a new blog article "How to deal with stone seams" Yesterday

      Shearing and seaming are a common process encountered in stone installation and grinding renovation. Stone cutting generally requires professional machines and cutting blades. One machine leaves the factory from the time of entering the factory to the end of the mission. It is mostly its operators, the operator is like the guardian of the 12 inches cut off wheelmachine, knowing the performance and status of the machine: how long it takes to run, what kind of sound will be emitted when performing an action, how long it will work How high the temperature will be reached and so on. These things seem normal, but they are the first-hand information of the machine tool, which will be very beneficial to the later maintenance and maintenance of the equipment.
      How to deal with stone seams when cutting stone with cutting blades? It should be known that the seam processing is not good and it is easy to cause damage to the stone during later use. First of all, we must first determine the width of the stone to be cut, choose the appropriate cutting piece, and then confirm the thickness of the stone to adjust the height of the cutting piece; then use the wooden line to pull the line, the cutting machine cuts the stone seam cis, if the cutting surface has a zigzag Trace, please change the new cutting piece immediately, and finally use the vacuum cleaner to clean the dust and remove dust. After waiting for about half an hour, you can fill the seam with the adjusted stone sealant. The seam treatment of the cut piece is the seam treatment and seamless treatment that people often say.
      1, tools, materials
      Power cable reel, portable cutting machine, gold steel cutting blade, small vacuum cleaner, putty knife, towel, bucket, two wooden lines.
      2, construction method
      1> First determine the width of the stone to be cut, choose the appropriate cutting piece, and then confirm the thickness of the stone to adjust the level of the cutting piece.
      2> Then draw the line with the wooden line, the cutting machine cuts the stone seam cis, if the cutting surface has jagged scratches, please change the new cutting piece immediately.
      3> Finally, use a vacuum cleaner to suck the waste, and then use a semi-wet towel to remove the dust. (If it is not dusted, it will affect the adhesion of the marble glue, or even fall off) Wait for about half an hour.
      4> Fill the seam with the adjusted stone sealant:
      Following strict construction procedures, the stone can be evenly leveled when installed or refurbished, with good results:

    • mklyk has written a new blog article "Tips for trimming the side of the wheel" 11.17.2018

      a: When trimming the side wall of the grinding wheel, the trimming knife and the side of the grinding wheel are placed at a certain angle. After the grinding wheel is opened, the repairing knife is slow.
      Slowly approaching the grinding wheel, after a good knife, cut off disc for stainless steeleach time the amount of the cutting is about 0,01mm, the knife is moved around evenly, when the grinding wheel
      At the end, stand the dresser in the center of the grinding wheel, then slowly raise the grinding wheel until the knife finishes on the grinding wheel.
      b: When processing some workpieces with higher sides, in order to prevent the friction area between the grinding wheel and the workpiece, it is large and hot.
      When grinding the side wall of the grinding wheel, the grinding wheel should be avoided from 0.03 to 005 mm. When the R or the slope is repaired, the arc dresser or angle dresser is placed on the workbench and the school is applied.
      When leveling the wheel, aim the knife at the center of the wheel.

      Little joke
      1. Your money is not blown by the wind, but it is like being blown away by the wind.
      2. Hair loss is because there is no object for too long, your hair thinks you are a monk, so it starts to fall off.
      3. Adding a prime word in front of the title is fake, such as vegetarian meat, vegetarian chicken, vegetarian, and plain.

    • mklyk has written a new blog article "Abrasive quality control" 11.16.2018

      First, the quality of abrasives

      1) There are large particles in the abrasive. Causes scratches.

      2) Different manufacturers, the same specifications of abrasive products, the difference in particle size specifications is too large, and some even cross the grain size number. Lead to unstable product performance.

      3) Abrasives of the same grade, the actual strength of the thin flat cutting disc varies greatly, resulting in unstable product performance

      4) The impurity content and content in the abrasive are unstable. This results in unstable product performance; it also affects the performance of the workpiece being ground for more demanding grinding objects.

      The quality problems that often occur at present are mainly reflected in the above four aspects. The following four aspects are introduced on how to conduct quality control.

      Second, abrasive quality control

      1) Abrasive large particle control. thin flat cutting disc For single crystal diamond abrasives, the size fractionation is usually carried out by a sieve sieving method. Since the standard is unreasonable for large particles, large particles often appear in the single crystal abrasive. Especially for 80/100 abrasives for fine grinding applications, large particle inspections must be carried out before use. If the manufacturer wants to control large particles, it is necessary to reduce the upper limit sieve of the inspection sieve by one number, so that the large particles can be effectively controlled.

      The user has to control large particles, and can filter out large particles by sieving. Microscopic image method can also be used to inspect large particles. It is found that large particles should be treated or replaced. Diamond micronized abrasives are usually classified by sedimentation method. Since there are no practical standards at present, the definition and understanding of large particles are currently inconsistent. Therefore, it is not surprising that large particles often appear in micronized products.

      In order to control large particles, the production unit must first control the settlement time of the stopper particle size to ensure that the large particles are blocked outside, and at the same time pay attention to the production links without any pollution. Especially in the production of fine powder of 5μm, the production environment must be clean. As a user, it is currently necessary to examine large particles in micropowder using only microscopic image analysis. For the definition and analysis of large particles, please refer to the contents of the fifth lecture.

      2) For single crystal diamond abrasives, the products of the same specification, different manufacturers and different batches have great differences, and some even differ by one grain size. This will have a greater impact on the use of the effect. The manufacturer shall strictly inspect the screen used to ensure that the screen meets the standard requirements in order to ensure that the particle size of the single crystal diamond abrasive product of the same specification of different batches and different manufacturers is stable.

      For the user, it is also necessary to use a qualified screen for quality inspection. For the user, the one-to-one particle size composition is an important factor to ensure the stability of the use effect. Therefore, the particle size composition of the product should be strictly checked. The method by which the user controls the particle size composition is a screening method and an image analysis method. For the diamond micropowder, a microscopic image method, an electric resistance method, or a laser diffraction method can also be used.

    • mklyk has written a new blog article "High performance cutting disc" 11.15.2018

      Precision grinding can be divided into ordinary abrasive grinding wheel precision grinding and super hard abrasive grinding wheel precision grinding according to the abrasive material used. For the problem of precision grinding of super-abrasive grinding wheels, the hook net is specifically discussed. Superabrasive grinding wheels currently mainly include diamond high performance cutting discand cubic boron nitride grinding wheels, and are used for precision grinding of difficult-to-machine materials.
      Characteristics of superabrasive grinding wheel grinding
      1. Super-abrasive grinding wheel has the characteristics of good wear resistance, high performance cutting discstrong grinding ability and high durability. This feature is of great help for controlling the processing size and realizing the processing automation.

      2. At the same time, the super-hard abrasive wheel also has the characteristics of low grinding temperature, small grinding force, no burn and no crack, good surface quality and no change in microstructure. When grinding cemented carbide with a diamond grinding wheel, the grinding force is only 1/4 to 1/5 of that when the green silicon carbide grinding wheel is ground.

      3, high grinding efficiency, is also one of the main features of super-abrasive grinding wheel, this is because the super-hard abrasive has a sharp edge, high wear resistance, so there is a higher resection rate and grinding ratio. However, super-hard abrasive wheels have more difficult finishing problems.

      4. The most important feature of the super-abrasive grinding wheel is that the processing cost is low. Although the diamond grinding wheel and the cubic boron nitride grinding wheel are relatively expensive, the service life is long, the processing efficiency is high, the working hours are small, and the comprehensive cost is low.

    • mklyk has written a new blog article "Use resin cutting blades to pay attention to 4 details" 11.14.2018

      In order to be able to achieve safe production and increase production efficiency, some details of the use of the resin standard cut off wheel for metal require special attention:
          1. When the cutting is not sharp, the cutting piece should be trimmed and edged. If it continues to be used, it will cause overheating and overload, and the cutting piece will be damaged. Also, it should be noted that the cutting piece is strictly prohibited for operations other than grooving or cutting, and abnormality due to uneven force is avoided.
          2. In the rotation of the cutting piece, it is strictly forbidden to cut by hand, and the cutting piece cannot be touched by hand or body. Also, if abnormalities are found during the cutting process, stop immediately. Also note that when the cutting piece is marked with the direction of rotation, it must be in the same direction as the machine tool. On the contrary, the cutting is not sharp, and it is difficult to exert the performance of the cutting piece.
          3. If a cutting piece that does not match the cut workpiece is used, it is prone to abnormal wear, poor sharpness, abnormal heat, and the like. In addition, it should be noted that when the flange is too small or the precision is poor, the cutting piece is easily damaged. Please use it after improvement.
          4. Please check carefully before installing the cutting piece to confirm whether the cutting piece has deformation, crack, and collapse.
        When using the resin dicing sheet, as long as you pay attention to the points mentioned above, there will be no major problems.

    • mklyk has written a new blog article "Grinding wheel quenching" 11.13.2018

      Why should water be cooled frequently when grinding a high hardness tool that has been quenched and tempered on a grinding wheel?7" cut off disc for stainless steel
      Cutting is a physical movement. Narrowly defined cutting refers to cutting objects (such as food, wood, and other objects with low hardness) with a sharp tool such as a knife; generalized 7" cut off disc for stainless steel refers to the use of tools, such as machine tools, flames, etc., to make objects under pressure or high temperature. Disconnected.
      The grinding wheel spindle is overheated because the gap between the main shaft and the bearing is too small, there is debris between the bearings, the bearing is worn, the lubricating oil is not enough or leaks, and the lubricating oil is used incorrectly, which makes the bearing lubrication poor.
      High-hardness tools after quenching and tempering produce high temperatures during grinding, often using water cooling to prevent workpiece annealing. For example, we grind white steel cutters on the grinding wheel, and if it is not water-cooled for a long time, the white steel cutter will produce an annealing phenomenon (feeling like burning) and lose the hardness, and the cutting work cannot be completed. Grinding for a while, cooling in water, is also a quenching process to maintain the hardness of white steel. Carbide-like tools or cutting tools are not allowed to be cooled by water during grinding. Therefore, the hard alloy has good red hardness and will not be annealed at high temperatures. Conversely, if water is continuously used during grinding, the cemented carbide will break due to the large internal and external temperature difference, causing damage.
      Steel tools generate a lot of heat during grinding. If they are not cooled, the hardness and rigidity of the product will decrease, which will affect the quality and service life of the product. Using water cooling to lower the workpiece temperature maintains workpiece performance.
      Cemented carbide materials are resistant to high temperatures and are brittle. In the case of quenching and rapid heat, the product may crack.

    • mklyk has written a new blog article "Wheel surface passivation" 11.12.2018

      The passivation of the grinding wheel is caused by the wear of the top of the abrasive grain into a plane, which will increase the grinding force. When the wear rate of a certain grinding wheel is reached, the grinding force will increase sharply, causing chattering and grinding burns. Grinding can no longer be carried out; such passivation is prone to occur when the grinding wheel has a high hardness. The crushing and detaching of the abrasive grains will make the surface of the grinding wheel uneven, resulting in a decrease in the machining accuracy of the parts and a deterioration in the surface roughness. At this time, although the standard cut off wheel for metalis still sharp, it cannot be used any more. This passivation is often caused by the hardness of the grinding wheel being too low or the dressing of the grinding wheel being too fine. For the above reasons, the degree of passivation of the grinding wheel should be determined according to the specific grinding conditions and production requirements. Under normal circumstances, we can determine whether the grinding wheel is passivated according to the following grinding phenomena:
      +1 flutter marks generated on the surface of the workpiece;
      +2 sharp change in grinding noise;
      +3 grinding burns occurred;
      +4 sharpening force increases or decreases sharply;
      +5 processing surface roughness deterioration;
      +6 Processing accuracy is reduced.
      There are three basic forms of wheel wear: wear wear, crush wear and wear wear. (Do you know the method of surface grinding?)
      (1) Wear and wear, wear and wear is characterized by the formation of worn small facets on the abrasive grains of the grinding wheel. During the grinding process, due to the mechanical friction of the hard spots of the workpiece, high temperature oxidation and diffusion will cause wear of the abrasive cutting edges. Passivation.
      (2) Fracture wear: During the grinding process, the abrasive grains are subjected to repeated rapid heat and rapid cooling, and great thermal stress is formed on the surface of the abrasive grains. Finally, the abrasive grains are partially broken along a certain surface.
      (3) Shearing wear; during the grinding process, as the grinding temperature increases, the strength of the bonding agent decreases accordingly. When the grinding force increases beyond the strength of the bonding agent, the entire abrasive grain is detached from the grinding wheel, which is detached and worn.
      As a result of the wear of the grinding wheel, the grinding performance deteriorates. The main forms are passivation type, shedding type (shape distortion) and blockage type.
      When the hardness of the grinding wheel is high, the dressing is fine, and the grinding load is light, the passivation type is likely to occur. At this time, although the quality of the processing table is good, the metal removal rate is remarkably lowered.
      When the grinding wheel has a low hardness, the dressing is thick, and the grinding load is heavy, it is prone to fall off. At this time, the contour of the sand is distorted, which seriously affects the quality of the grinding surface and the machining accuracy.
      When grinding carbon steel, the chips soften under the high temperature of grinding, and the plugs are embedded in the gap of the grinding wheel to form a built-in blockage. When the titanium alloy is ground, the chip has a strong affinity to the abrasive grains, which makes the chips melt and stick. Attached to the abrasive particles to form an adhesive plug. When the grinding wheel is clogged, the cutting ability is lost, the grinding force and temperature increase sharply, and the surface quality is significantly reduced.

    • mklyk has written a new blog article "Demand for highly efficient advanced cutting blades will grow rapidly" 11.09.2018

      Cutting discs and machine tools are two independent subsystems of the manufacturing system. They are independent and inseparable.cut off disc for stainless steel has an important contribution to the improvement of labor productivity in the manufacturing industry. What are the prospects for the development of cutting films in the next few years? This must be a topic of concern to many people in the industry.
      Since the development of the cutting disc of the mechanical industry, China has made great progress in the export of cutting discs, but most of the cutting discs exported now are standard cutting discs with low price and low grade.
      Looking at the global market, the global manufacturing industry spends more than $400 billion annually on cutting, with tooling costs around $20 billion. Modern and efficient tools can greatly improve production efficiency in the development of the manufacturing industry, so each country is working hard to develop high-efficiency props and use it as an important means to improve the competitiveness of manufacturing. According to this analysis, with the continuous development of the manufacturing industry in the next few years, the demand for high-efficiency and advanced tools will increase rapidly, and the proportion of standard tools will gradually decrease.

      Cutting discs and machine tools are two independent subsystems of the manufacturing system. They are independent and inseparable. Cut off disc for stainless steel has an important contribution to the improvement of labor productivity in the manufacturing industry. What are the prospects for the development of cutting films in the next few years? This must be a topic of concern to many people in the industry.
      Since the development of the cutting disc of the mechanical industry, China has made great progress in the export of cutting discs, but most of the cutting discs exported now are standard cutting discs with low price and low grade.
      Looking at the global market, the global manufacturing industry spends more than $400 billion annually on cutting, with tooling costs around $20 billion. Modern and efficient tools can greatly improve production efficiency in the development of the manufacturing industry, so each country is working hard to develop high-efficiency props and use it as an important means to improve the competitiveness of manufacturing. According to this analysis, with the continuous development of the manufacturing industry in the next few years, the demand for high-efficiency and advanced tools will increase rapidly, and the proportion of standard tools will gradually decrease.

    • mklyk has written a new blog article "Maintenance method of diamond cutting blade / saw blade" 11.08.2018

      1. If the diamond saw blade is not used immediately, it should be laid flat or suspended by the inner hole. The flat diamond 12 inches cut off wheelsaw blade should not be stacked with other objects or feet, and should be protected against moisture and rust.
      2. When the diamond cutting blade/saw blade is no longer sharp and the cutting surface is rough,12 inches cut off wheelmust be repaired in time. Grinding does not change the original angle and destroys the dynamic balance.
      3. The inner diameter correction of the diamond cutting piece/saw blade, the positioning hole processing, etc. must be performed by the factory. If the processing is poor, it will affect the product use effect, and danger may occur. The hole reaming should not exceed the original hole diameter of 20mm in principle, so as not to affect the stress balance.
      Diamond cutting blade / saw blade use requirements:
      1. When working, the workpiece should be fixed, the profile positioning should conform to the direction of the knife to avoid abnormal cutting, do not apply side pressure or curve cutting, the feed should be smooth, avoid the blade impact contact with the workpiece, resulting in damage to the saw blade, or The workpiece flew out and an accident occurred.
      2. When working, if the sound and vibration are abnormal, the cutting surface is rough, or the odor is generated, the operation must be terminated immediately, and the fault should be checked in time to eliminate the accident to avoid accidents.
      3. When starting cutting and stopping cutting, do not feed the knife too fast to avoid broken teeth and damage.
      4. If cutting aluminum alloy or other metal, use a special cooling lubricant to prevent the saw blade from overheating, causing paste, and other damage, which affects the cutting quality.
      5. The equipment flute and slag suction device ensure smooth flow to prevent slag from forming into blocks, which affects production and safety.
      6. When dry cutting, please do not cut continuously for a long time, so as not to affect the service life and cutting effect of the saw blade; wet film cutting should be cut with water to prevent leakage.

    • mklyk has written a new blog article "Experimental Analysis of Grinding Stainless Steel by Grinding Wheel" 11.07.2018

      7'' cut off disc for metal
      Stainless steel parts are required to reach the surface quality and processing accuracy, usually using grinding methods. Due to the high toughness of the stainless steel, the small thermal conductivity and the small elastic modulus, the following problems often occur in the grinding process:
             1) The grinding wheel is easy to adhere to the infarction;
             2) The surface of the processing is easy to burn;
             3) The work hardening phenomenon is serious;
             4) The workpiece is easily deformed.
             It is not difficult to see that the choice of grinding wheel and grinding fluid directly affects grinding efficiency and machining accuracy. This article stops the experimental study on the factors affecting the adhesion infarction and appearance roughness.
             Experimental conditions and methods
             Experimental data: The grinding wheel is P400×40×203, and the grinding method is longitudinal grinding of the outer circle. In order to improve the reliability of the experimental results, stop the repeated experiment, observe the uniform effect, eliminate the influence of random factors, and try to adhere to the grinding conditions as much as possible. Constantly, after changing the particle size, hardness, abrasive material of the grinding wheel, changing the grinding fluid and grinding amount to investigate the effect on the grinding effect.
             Analysis of experimental results
             1---The effect of grinding wheel particle size on adhesion rate
             The selected white corundum, hardness K, and four grinding wheels with particle sizes of 36, 46, 60, and 80, respectively, the longitudinal grinding of the test piece was stopped, the grinding length was 600 mm, the adhesion rate was measured, and the grinding wheel was finer and sticky. The severity of the attachment is due to the presence of air between the abrasive grains. The chips can be stored in the air during grinding. The finer the grinding wheel is, the smaller the space is. The grinding wheel quickly loses the space of the chip and forms an infarction.
             2---The effect of grinding wheel hardness on adhesion rate
             Grinding wheels with white fused alumina, particle size 46 and hardness of H, J, K, and L grades were selected, and the test piece was stopped for grinding. The grinding stroke was 600 mm, and the adhesion rate was measured. The higher the hardness of the grinding wheel, the more serious the adhesion. This is due to the low hardness of the grinding wheel, the abrasive particles under the action of the grinding force, easy to fall from the surface of the grinding wheel, constitute a new chip space, not easy to infarct.
             3---The effect of abrasive on adhesion rate
             Commonly used grinding wheel abrasives are white corundum and green silicon carbide. The experiment indicates that the influence of the two abrasives on the adhesion rate is not much different. Green silicon carbide can slightly reduce the adhesion phenomenon, and the reason is brittle and sharp.
             4---The effect of grinding fluid on the surface roughness
             Use three kinds of emulsions, inorganic salt grinding fluid and oil-based grinding fluid, participate in extreme pressure additives such as sulfur and chlorine, and observe the surface roughness of the workpiece after processing. The flow rate of grinding fluid is 20L/min, grinding stroke It is 600mm.
             It can be seen that the external tension is small and contains extreme pressure additives, and the appearance obtained by grinding is good. Reasonable use of grinding fluid can improve the heat dissipation condition. The grinding fluid can wash away the grinding debris and the falling abrasive particles, and at the same time form an oil film on the metal surface to smooth the surface and reduce the roughness of the workpiece.
             5---The effect of grinding amount on adhesion rate
             7'' cut off disc for metalThe workpiece rotation speed, feed rate and grinding depth have little effect on the machining, and the modification of the grinding depth has little effect on the adhesion rate.
             in conclusion
             1) When grinding stainless steel, reducing the adhesion and blocking of the grinding wheel is an important factor for improving the grinding efficiency. The grinding wheel should be often trimmed during processing, and the sharpness of the cutting edge should be adhered to.
             2) Grinding stainless steel grinding wheel is the main purpose of using self-sharpening grinding wheel. Generally, the grinding wheel with low hardness is good, but the hardness is too low, otherwise the abrasive grain will not be blunt. The referral is J grade.
             3) In order to reduce the adhesion and obstruction of the grinding wheel during grinding, a coarse-grained grinding wheel should be used. For coarse grinding, the size of No. 36 and No. 46 is used, and for fine grinding, the size of No. 60 is used.
             4) When grinding stainless steel, the grinding wheel can be used to improve the grinding efficiency.
             5) The grinding fluid must be coordinated with both smoothing and cleaning. The supply is sufficient. The emulsion with low surface tension and extreme pressure additives can be used to obtain high appearance quality.
             6) The choice of grinding amount can be affirmed according to the machining allowance.
             7) During the experiment, it was found that the grinding wheel structure and the separating agent have a certain influence on the grinding process of stainless steel.

    • mklyk has written a new blog article "Tile splicing cutting skills" 11.06.2018

      Home decoration and tiling are already a concern of everyone. In order to make the appearance of the home in the inlay, it is more and more popular to use tile splicing to make the mosaic, which is simple, direct, economical and practical.
      For the master, it is a fine work, and the tile splicing requires the tile to be cut accordingly. Cutting requires consideration of the skill of the master,high performance cutting discas well as the characteristics of the tiles, as well as the style.
      Manual cutting of antique bricks can be divided into three steps:
      The first step: positioning
      Move the ruler to select the cutting size, hold the operation handle with one hand, pull the cutter wheel position to the rear seat, place the antique brick on the bottom plate and align the cutting line of the antique brick with the bottom plate beam. The gap of the bottom plate.high performance cutting disc
      The second step: scribing
      Put down the handle to make the cutter wheel contact with the surface of the antique brick, and push the handle forward so that the cutter wheel cuts a continuous straight line on the surface of the antique brick.
      The third step: press down
      Raise the operating handle slightly and pull it back so that the clamp is placed smoothly on the front end of the antique brick. With the appropriate force, press the handle down and the antique brick will break along the score line.
      Note: When scribing, be sure to be uniform, continuous, and clear from beginning to end. This is the key to cutting antique bricks. When cutting, be sure to hold the handle with a small amount of force, and gently push the cutter wheel smoothly. Otherwise, excessive force will not only damage the tile, but also greatly shorten the service life of the cutter wheel.
      Of course, antique bricks can also be cut with a glass knife like cut glass. First use a metal cutter to cut the cutting line on the surface of the antique brick. Then, flip the antique brick, the back side is up, place the line on a hard plane corner, the large half plane is compacted, the small half plane is suspended, and the two hands are placed separately. At both ends of the tile, you can form it with a sigh of relief.
      Polished brick
      The hardness of the polished brick is high. It has certain requirements for the cutting worker's technology. It must be familiar. It is best to use professional cutting equipment. When cutting, the cutting part must be sprayed to cool down. Otherwise, the tile will crack.
      The manual cutting step can be used to refer to the cutting process of antique bricks. Manual cutting machine can only cut polished bricks and antique bricks. It is not acceptable for all-glazed glaze and microcrystalline stone. If the microcrystalline stone is a professional factory, there may be a phenomenon of chipping.
      Hand-held machine cutting is also a method, which is convenient, but the type of cutting is limited. The cutting master needs to cut along the whole process, and it needs to cut one side, and must use the homemade bottle to spray water. Otherwise, the friction temperature is too high, which will cause Bad consequences, so there is a certain danger.
      Full cast Glaze
      Full glaze is a special glaze that can be polished on the glaze. It is the last glaze applied to antique bricks. Currently, it is usually a transparent glaze or a transparent convex glaze. The full-glazed glazed tile combines the advantages of polished tiles and antique bricks. The glazed surface is smooth and polished like polished tiles. At the same time, its glazed colors are rich in patterns like antique tiles, and the colors are heavy or beautiful.
      The full glaze is a high-grade tile, and it is fragile. It needs to go to a professional cutting manufacturer, use a professional cutting machine (the machine is equipped with water standard cutting), and the cutting master craftsmanship is better. Otherwise it will lead to full glazed porcelain and glaze. After cutting, you need to grind the original edge, otherwise there will be burrs, there is no way to put it on.
      Marble tile
      Marble tiles are the most common type of mosaic, because its texture and luster are so prominent that no tile can match it.
      Sometimes some cuts are more complicated, such as a combination of round, various colors and patterns, and it is safest, simplest and practical to use a professional waterjet.
      If you want to try it yourself, you can use a glass knife or an alloy steel drill bit to cut the glass on the front side, and then put a wooden strip on the bottom, and then place two bricks on the brick. Step on a square beam, slam on it hard, and the bricks are neatly disconnected.

    • mklyk has written a new blog article "5 points to pay attention to metal pipe cutting" 11.05.2018

      In the process of pipe cutting, some small details that we ignore may have a great impact on the cutting effect and cutting efficiency. So what do we pay attention to when use thin flat cutting disc in the metal pipe cutting?

      1. The workpieces processed by the cutting machine must be clamped reliably. If the workpiece is not clamped, the cutting at the beginning will affect the cutting effect and affect the service life of the saw blade. When clamping the workpiece, the clamping should be stable and firm. The protective cover must be installed correctly. After the clamping, it should be turned on and checked, and there must be no vibration or abnormal noise.

      2, the power line must be safe and secure, it is strictly prohibited to privately pull, be careful that the power cord is placed, do not be cut off. Care must be taken to check the performance of the equipment before use to ensure that the components are in good condition. Wear suitable overalls. Do not wear loose overalls. Do not wear jewelry or long hair. Do not wear gloves and cuffs. When the operator is not standing behind the saw, power off, rest or work separately, the power should be turned off immediately.

      3. When changing the new thin flat cutting disc or grinding wheel in the middle, do not use the locking nut too hard to prevent the saw blade or the grinding wheel from cracking. The manual cutting machine should hold the cutting machine handle firmly under the average force, and the fixed end should be firm and firm. The small workpiece or the edge with serious edges should not be clamped too tightly to prevent the saw blade from bursting when sawing.

      4. In order to improve the working efficiency, before the sawing of a single pipe fitting or a plurality of pipe fittings, it is necessary to do a good job of auxiliary clamping positioning, do not stop the powerful cutting operation, and wait until the motor speed reaches full speed before cutting. Do not loosen any hand or lift the arm from the saw or workpiece when the saw blade is not stopped. Do not operate the maintenance cover when it is not in place. Do not place your hand within 15 cm of the saw blade; do not cross over or bypass the saw machine. It is advisable to apply 45 degrees to the side of the body during operation.

      5, there is an abnormal sound, should immediately stop the inspection; before repairing or changing the accessories must first cut off the power, and wait for the saw blade to complete the suspension before stopping the next operation.

    • mklyk has written a new blog article "Laser cutting machine controls cutting quality" 11.05.2018

      First, the impact of focus position adjustment on cutting quality</br>

      Since the laser power density has a great influence on the cutting speed, the selection of the lens focal length is an important issue. After the laser beam is focused, the spot size is proportional to the focal length of the lens. After the beam is focused by the short focal length lens, the spot size is small, and the power density at the focus is high, which is good for material cutting. However, its shortcoming is that the depth of focus is very short and the adjustment margin is adjusted. Small, generally suitable for high-speed cutting of thin materials. Since the long focal length lens has a wide focal depth, it is suitable for cutting thick workpieces as long as it has sufficient power density. 7'' cut off disc for metalensuring a constant relative position of the focus to the workpiece during the entire cutting process is an important condition for obtaining a stable cutting quality. Sometimes, the lens is heated due to poor cooling and causes a change in focal length, which requires timely adjustment of the focus position. When the focus is in a better position, the slit is smaller and the efficiency is higher, and the better cutting speed can obtain better cutting results. In most applications, the beam focus is adjusted just below the nozzle. The distance between the nozzle and the surface of the workpiece is generally about 1.5 mm.

      Second, the impact of cutting speed on cutting quality

      For a given laser power density and material, the cutting speed is in accordance with an empirical formula. As long as the threshold is above the pass threshold, the cutting speed of the material is proportional to the laser power density, ie increasing the power density increases the cutting speed. The power density referred to here is related not only to the laser output power, but also to the beam quality mode. In addition, the characteristics of the beam focusing system, that is, the spot size after focusing, also have a large effect on laser cutting.7'' cut off disc for metal Especially for metal materials, the laser cutting speed can have a relative adjustment range while maintaining other process variables while maintaining a satisfactory cutting quality. This adjustment range is slightly thicker than when cutting thin metal. width. Sometimes, the slower cutting speed will also cause the hot melt material to be ablated to ablate the surface of the mouth, making the cut surface rough.

      Third, the impact of laser output power on cutting quality

      For a continuous wave output laser, the laser power size and mode will have an important impact on the cutting. In actual operation, it is often necessary to set a larger power to obtain a higher cutting speed, or to cut a thicker material. However, the beam mode (the distribution of the beam energy in the cross section) is sometimes more important, and the mode often changes slightly as the output power is increased. The modes are not consistent during the entire effective working life of the laser. The condition of the optics, subtle changes in the laser working mixture, and flow fluctuations all affect the mode mechanism.

      In summary, although the factors affecting the laser cutting machine are more complicated, the cutting speed, focus position and laser output power are three important variables. In the cutting process, if the quality of the cut is found to be significantly worse, the factors discussed above should be checked first and adjusted in time.

    • mklyk has written a new blog article "Typical application examples for water cutting" 11.03.2018

      Along with the development of the machinery industry, the number of mechanical products that need to be processed is increasing, and the use of cutting blades is increasing.7'' cut off disc for metal is made of glass fiber and resin as reinforced bonding material. It has high tensile strength, impact resistance and bending strength. It is widely used in the production of ordinary steel, stainless steel metal and non-metal. The excellent materials and exquisite craftsmanship guarantee High cutting efficiency and best economics for workpieces of different materials.
        1. 7'' cut off disc for metalTypical applications in the field of metal cutting:
        Metal cutting in stainless steel such as decoration and decoration. Manufacture of machine housings (such as machine tools, food machinery, medical machinery, electrical control cabinets, etc.). Metal parts cutting (such as semi-finishing of stainless steel flanges, steel structural parts, non-ferrous metals, special metal materials, etc.)
        2, typical application in the field of glass cutting
        Home appliance glass cutting (gas stove top, range hood, disinfection cabinet, etc., TV), architectural decoration, craft glass, automotive glass, etc.
        3, ceramics, stone and other building materials processing applications
      This field is mainly used for art puzzles. At present, China's ceramic and stone art puzzle products are exported to the world for the forming and cutting of special materials such as composite materials and bulletproof materials.

    • mklyk has written a new blog article "Type and mechanism analysis of grinding wheel blockage" 11.02.2018

      Our product is 12 inches cut off wheel.The grinding process is performed by cutting a certain amount of workpiece material to obtain a better surface quality and precision. The commonly used tool is a grinding wheel. The grinding wheel is a loose body made of abrasive and binder by compacting, drying and sintering. The single abrasive grain is a tiny cutting edge with a large negative rake angle and a rounded radius of the cutting edge. The high-speed moving abrasive grains are cut into the workpiece after sliding and ploughing, and the cutting layer material obviously slides along the shearing surface to form short and thin chips, which are heated to a very high temperature in the grinding zone. It is then oxidized and melted to solidify into a particle sphere, with some forks on the sphere surface, which is a major form of wear debris. When grinding acid-resistant stainless steel Cr20Ni24Si4Ti, a large amount of spherical abrasives were found, accompanied by strips, nodular wear debris and ash. Many parts of these abrasives will be filled into the pores of the grinding wheel and attached to the periphery of the abrasive, causing the grinding wheel. Blockage, resulting in reduced grinding accuracy, burns the workpiece, and shortens the life of the grinding wheel.

      Grinding is a widely used metal cutting method. It mainly processes hard materials that are difficult to cut with conventional tools and materials with high surface quality and dimensional accuracy. With the emergence and application of a large number of new materials on the accuracy and quality of parts, the application of grinding processing has increased more than other traditional processing methods. In the grinding process, the size, shape and distribution of the abrasive particles play an important role in the processing. However, when the tough metal is processed, the grinding wheel is sharply blocked and passivated, resulting in shortened life of the grinding wheel, in order to avoid the adverse effects of the passivation of the grinding wheel. It is necessary to analyze the mechanism and cause of the grinding wheel blockage.
      1 Type of grinding wheel blockage
      The types of wheel blockage are embedded, adhesive and hybrid. The embedded plug is the clogging state where the grinding debris is stuck in the gap of the working surface of the grinding wheel; the adhesive type plugging is the clogging state of the grinding debris on the abrasive particles and the bonding agent; the mixed type clogging is both embedded and clogging type Blocked.

      2 Mechanism analysis of embedded plugging
      External factors: Grinding processing has a very important feature. Generally, Fy/Fz is greater than 2?10. The harder the workpiece material is, the smaller the plasticity is. The larger the ratio is, the more the grinding debris in the grinding zone is under the action of strong positive pressure. Mechanically squeezed into the gap in the surface of the grinding wheel. The grinding debris slides out along the front of the abrasive grain. A few layers of wear debris accumulate in a local area in front of the abrasive grain. When the grinding wheel rotates at a high speed, a swirling zone is formed behind the abrasive grain, and the air pressure in the vortex zone is significantly reduced. Under the action, some of the abrasive chips are attached to the back of the abrasive grains to form a dependency clogging of the abrasive flank, and most of the attachments are ash and particles.

      The role of the electrostatic field: a small electric field consisting of a grinding wheel and a workpiece is formed in some small areas of the grinding zone. Under the action of the electric field, part of the grinding debris will exhibit polarity. According to the principle of opposite attraction, the polarity of the grinding wheel is opposite. The wear debris is absorbed on the working surface of the grinding wheel. By means of the large mechanical pressure between the grinding wheel and the workpiece, the grinding debris that has been adsorbed on the surface of the grinding wheel can be stably embedded between the gaps on the surface of the grinding wheel.
      3 Mechanism analysis of adhesive clogging
      Melt bonding: Most of the input power in the grinding process is converted into grinding heat, so that the grinding point temperature is up to 1200k or more. The grinding debris is rapidly oxidized by air to form a low melting point metal oxide, which is heated at a high temperature in the grinding zone. In the state of melting or micro-melting, covering the surface of the grinding wheel, when this part of the surface of the grinding wheel is involved in grinding again, it is squeezed or strengthened under the action of grinding force, which increases the affinity and adhesion with the grinding wheel, and some are The extrusion adheres to the surface of the groove in which the surface of the workpiece is raised. Through multiple random grinding, many abrasive chips are adhered around the abrasive grains, which increases the grinding force and increases the temperature, thereby causing a vicious cycle and aggravating the blockage until the abrasive grains are broken or fallen off.

      4.Chemical bonding: Chemical affinity between different elements is another important cause of cohesive blockage. The abrasive particles and the material to be ground are contacted at the temperature of the crucible. The temperature factor makes them more active and the affinity is increased. When certain conditions are met, the chemical reaction is caused, causing the abrasive grains and the grinding debris to form a loss of cutting ability on the surface of the grinding wheel. Crystal.

    • The problems that should be paid attention to when using the resin grinding wheel:
      ad.7" cut off disc for stainless steel
      1. Check the resin grinding wheel before installing the fan to see if there is any crack, and hit the grinding wheel with a wooden hammer to hear if there is any abnormal noise. If so, you cannot use a cooling fan to avoid damage to the grinding wheel. .

      2. For the newly used resin grinding wheel, it should be idle for more than one minute before use. If everything is ok, it can be used normally according to the safety regulations of the grinding machine.

      3. Since the resin wheel is fragile, do not let it be impacted, bumped or dropped. Storage should pay attention to antifreeze and moisture. Keep the room cool and airy. Lay it flat, stack it neatly, pay attention to dust, keep the unused grinding wheel clean, and do not press it.

      4. When installing the resin grinding wheel, the center of the resin grinding wheel must be found. At the same time, the flange should be fixed. After installing the flange, check that the outer circle of the grinding wheel is concentric with the main shaft. The resin grinding wheel has at least one side perpendicular to the centerline of the main shaft.

      5. After installing the resin grinding wheel, for safety reasons, please install a qualified protective cover before starting the machine.

    • mklyk has written a new blog article "Diamond grinding wheel application requirements" 11.01.2018

      The diamond grinding wheel is welded by a diamond cutter head or cold pressed on a metal substrate; the diamond cutter head is formed by natural industrial diamond and other base metal powder, cold pressed and hot pressed, and then welded to the metal matrix of the bowl shape. on. Diamond grinding wheels are usually installed in concrete sanders to grind concrete, granite, marble and other stone materials. Diamond wheels are available in different types and standards to suit different applications.7'' cut off disc for metalThey are commonly used to polish concrete, stone, as well as paints, glues, epoxies and other airborne coatings. Diamond cutter heads have different carcasses, different grain sizes and different diamond concentrations; carcasses can be divided into hard, medium, soft, etc. granularity is coarse, medium, fine, etc.; so their quality and use are different. When we select the diamond grinding wheel, we can choose the appropriate one according to my use; for example, when we polish the hard air, we should choose the soft carcass grinding wheel; assuming a fairly soft air, we can choose to compare Compared to a hard carcass. Regarding fine grinding, we can also call it a throwing. We can choose hard tires and fine-grained grinding wheels.

    • mklyk has written a new blog article "grinding wheel cutting and flame cutting work like this" 10.31.2018

      The grinding wheel cutting machine drives the thin-plate grinding wheel to rotate at a high speed by a motor, and cuts the steel slab by manually moving it up and down. The grinding wheel needs to be cut on the grinding wheel cutter.

      cut off disc for stainless steel has no similar restrictions
      The grinding wheel cutter can cut metal blanks of any hardness up to 40mm in diameter. The grinding wheel is characterized by high productivity and flat cutting section; however, the loss of the thin grinding wheel is large, the working conditions of the workers are poor, and good ventilation equipment is required.
      Flame cutting is also called gas cutting. The principle is to use a gas cutter or a common welding torch to locally heat the steel to a melting temperature with an oxygen gas stream to gradually melt it. It is mainly used for large-section cutting of large billets and forgings (the thickness of the cutting section can reach more than 1500mm), and

      the 7'' cut off disc for metalcan also be used for cutting the large die forgings produced in small batches. The core of the flame cutting is heating. When determining the final forging temperature, it is necessary to ensure that the steel has sufficient plasticity before final forging, and that the forging can obtain good structural properties. The final forging heating is divided into flame heating and electric heating, and the thermal energy is transmitted to the surface of the blank by convection and radiation, and then the metal blank is heated by heat conduction from the surface to the center.

    • mklyk has written a new blog article "Make beautiful crafts with a cutting machine" 10.30.2018

      In the industrial field, cut off disc for stainless steel has become a mainstream production method in sheet metal processing due to its high speed and high efficiency. But such a behemoth is not far from our life. The small items cut by
      7'' cut off disc for metalare always convenient for people and bring fun to life.

      Laser-cut metal fixtures General desk lamps take up a lot of space, and there is the possibility of accidentally knocking over the ground. The laser-cut folding luminaires are the ultimate in minimalism. Basically, all the unnecessary parts of the traditional light source are removed. They are made of only one piece of metal. They can be hung on the wall and occupy a small space. The shape is definitely a weapon to attract attention.
      Laser-cut metal hooks a small metal hook, seemingly simple but can make full use of the back door space, is a home storage tool, using a laser cutting machine to cut metal materials, hollowed out villain, smart birds and flowers, any graphics are formed once With the step of opening the mold, laser cutting gives the metal hook more creativity.



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